// Load the Visualization API and the piechart package.
google.load('visualization', '1.0', {
	'packages' : [ 'corechart' ]
});

// Set a callback to run when the Google Visualization API is loaded.
google.setOnLoadCallback(drawChart);

// Callback that creates and populates a data table,
// instantiates the pie chart, passes in the data and
// draws it.
function drawChart() {

	// Create the data table.
	var data = new google.visualization.DataTable();
	data.addColumn('string', 'Topping');
	data.addColumn('number', 'Slices');

	var rows = [];
	for ( var i = 0; i < optionsDto.length; i++) {
		var option = [ optionsDto[i].description, optionsDto[i].answerCount ];
		rows.push(option);
	}

	data.addRows(rows);

	// Set chart options
	var options = {
		'title' : 'Porcentaje de respuestas obtenidas',
		'width' : 800,
		'height' : 600
	};

	// Instantiate and draw our chart, passing in some options.
	var chart = new google.visualization.PieChart(document
			.getElementById('chart_div'));
	chart.draw(data, options);
}